This invention pertains to a novel paint brush with a removable bristle pack and a cantilevered bristle clamping panel. The paint brush provides ready cleaning after use by depressing one end of the cantilevered bristle clamping panel to release the bristle pack in order to rinse all of the bristles in a cleaning solution. A paintbrush comprising: (a) a paintbrush body and handle, the body having formed therein a cavity open on one side for receiving a bundle of parallel bristles and a bristle holder; (b) a bristle holder holding a bundle of parallel bristles, the holder fitting into the cavity; and (c) a panel mounted in cantilever manner over the cavity, the panel at a first end gripping the bristle holder and bristles when in a first position and when in a second position releasing the bristle holder and bristles.